Discontinued Operations and Assets Held for Sale - Summary of Major Classes of Assets and Liabilities Reclassified to Held for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets of Discontinued Operations
Subtotal: assets of Discontinued Operations	$ 580,179	$ 1,372,883
Liabilities of Discontinued Operations
Total liabilities held for sale	295,135	680,383
Discontinued operations
Assets of Discontinued Operations
Cash and cash equivalents	62,194	215,644
Receivables, net	42,277	62,576
Property and equipment, net	259,884	671,121
Goodwill	9,613	131,329
Tradenames	6,893	124,932
Operating lease right-of-use assets, net	66,673
Other assets	61,056	106,326
Subtotal: assets of Discontinued Operations	508,590	1,311,928
Liabilities of Discontinued Operations
Deferred revenue and student deposits	53,885	115,969
Operating leases, including current portion	71,411
Long-term debt and finance leases, including current portion	56,054	279,612
Other liabilities	91,094	269,558
Total liabilities held for sale	272,444	665,139
Assets classified as held for sale
Assets of Discontinued Operations
Subtotal: assets of Discontinued Operations	71,589	60,955
UniNorte Brazil | Assets classified as held for sale
Assets of Discontinued Operations
Receivables, net	6,969	6,983
Property and equipment, net	13,193	16,726
Goodwill	14,083	15,165
Tradenames	7,565	8,146
Operating lease right-of-use assets, net	15,244
Other assets	6,161	13,935
Liabilities of Discontinued Operations
Deferred revenue and student deposits	1,768	469
Operating leases, including current portion	10,119
Long-term debt and finance leases, including current portion	2,250	5,370
Other liabilities	8,554	9,405
Total liabilities held for sale	22,691	15,244
Other Land And Buildings | Assets classified as held for sale
Assets of Discontinued Operations
Property and equipment, net	$ 8,374	$ 0